Only if it has an equality sign otherwise it is an expression.
Simultaneous equation* * * * *No, simultaneous equations are two or more equations that have all to be true at the same time (simultaneously) for the solution.An equation with more than one variable is a multivariate equaion.Area = 0.5*Length*Height or a = 0.5*l*h for the area of a triangle has more than one variables, but it is certainly not simultaneous.An equation with a variable is called a single variable equation. An equation that has more than one variable is called as a multi-variable equation. A polynomial equation has one variable in different powers: a common example is quadratic equations.
a solution
It's called the "solution" of the equation.
it's called a variable (:
The number and variables when next to each other in an equation are called a term. The variable or letters are coefficients.4x + 3x = 28.4x and 3x are terms and the variable "x" is the coefficient.
A fraction.
It is called a variable fraction.
You cannot plug in a variable, what you do is plug in the value for a variable. If you know the value of the variable in an equation (or formula), the process of replacing that variable whenever it appears in the equation by its value is called plugging in the value for the variable.
Simultaneous equation* * * * *No, simultaneous equations are two or more equations that have all to be true at the same time (simultaneously) for the solution.An equation with more than one variable is a multivariate equaion.Area = 0.5*Length*Height or a = 0.5*l*h for the area of a triangle has more than one variables, but it is certainly not simultaneous.An equation with a variable is called a single variable equation. An equation that has more than one variable is called as a multi-variable equation. A polynomial equation has one variable in different powers: a common example is quadratic equations.
It is to make the variable the subject of the equation.
They are called the "solutions" of the equation.
a solution
It is called a variable. x is the most used variable.
It is a variable fraction. The exact nature will depend on the form in which the variable appears:as part of an algebraic, trigonometric, etc function. In some cases the fraction will have a name, in others it will not.
You are given a system of n or more simultaneous linear equations involving n unknowns. Pick one of the unknowns, called the pivot variable. Find an equation in which it appears, called the pivot equation.
An equation with more than one variable is called a multivariate equation.
The most common reason is because zero appeears in the denominator. Since zero in the denominator is undefined, any point where zero appears in the denominator is called a singularity. A lot of math and physics is done to get around singularities.